chore(package): update eslint-plugin-ember to version 7.7.2

Closes #31

Author: greenkeeper[bot]

package.json

@@ -72,7 +72,7 @@
     "eslint": "^6.0.1",
     "ember-typeface": "^1.0.0",
     "eslint-config-bbva": "^2.0.4",
-    "eslint-plugin-ember": "^6.2.0",
+    "eslint-plugin-ember": "^7.7.2",
     "eslint-plugin-node": "^9.1.0",
     "husky": "^3.0.0",
     "istanbul": "^0.4.5",